Finding the Fourth Proportional to 6,460.98, 8,917.20 and 3,943.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,460.98 : 8,917.20 = 3,943.50 : x
2. Step 2: Convert to fraction form
   6,460.98/8,917.20 = 3,943.50/x
3. Step 3: Cross multiply
   6,460.98x = 8,917.20 × 3,943.50
4. Step 4: Simplify right side
   6,460.98x = 35,164,978.20
5. Step 5: Solve for x
   x = 35,164,978.20/6,460.98
6. Step 6: Final answer
   x = 5,442.67